OpenTechnical

OT-2026-000091257

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, sustained blow-off before set-down

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000091257) never changes.

Identity and time

Publication numberOT-2026-000091257 · never reused
Internal UUID01a0ae9c-f16c-76ea-b48b-85bf392e30ff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091257
StatusPUBLIC

Content hashes

Canonical text66909d410141d757bcb838321ae560f13adc531d9777a3b784260cf79261045e
Markdownd9073c47c1134f3527bc90cf0515aad5081370be49ad6a1404e000b5fc7f40bf
PDF
Publication pagee1e522ac9281d474b2a8b7465835b71684619e80e3c6857e0b710e79fc4b9607
Manifest525643a944a525dbed6555fb0ab07f1bafd1504b663b10bef771c4a169121137

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signatureeq2ekxtZ09WPIrZQCDHsqczgQkgl3bYO8CDEtH0s10wbMd5NfBuWBXjc607tl/6mmEN7YbbTicsJk2tQGynICQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:43:26.095860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091257
observed e1e522ac9281d474b2a8b7465835b716...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:26.078990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091257/manifest.json
observed 525643a944a525dbed6555fb0ab07f1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:26.063891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091257/publication.md
observed d9073c47c1134f3527bc90cf0515aad5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:26.047954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091257/publication.txt
observed 66909d410141d757bcb838321ae560f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.